| 摘要 |
Disclosed are blends of a propylene-based polymer, an elastomer, and optionally an ethylene-based polymer, having improved low temperature toughness. The elastomer is preferably a copolymer of ethylene, one or more C3-C20 alpha-olefin comonomers, and optionally one or more non-conjugated diene comonomers, having a MLRA/ML ratio of at least 8 and an ethylene content of from 74 to 95 mole percent.
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